These websites provide tools for recording images and video of what is being shown on a user's computer screen.

Screencast-o-matic

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Website:
http://www.screencast-o-matic.com/
Distribution:
In browser, java plug-in
Anonymous User:
Record video playing on screen, save video locally
Logged-in User:
Upload video to Screencast-o-matic.com
Email Use:
Required for log-in account creation
Paid Option:
Run offline mode, editing tools available, remove watermark
Comparison:
Automatic upload to Youtube option, can add text notes at
specific times during the video, captured video can be
sluggish, mouse cursor is highlighted automatically
Description:
User can choose a portion or the entire screen to record, the
program makes a video of what is playing on the screen and
the sound the screen makes. Program can also upload
automatically to Youtube.
Uses:
Record a video that can not be downloaded, create how-to
tutorials for using other software, create a timelapse of
computer usage

aTube Catcher
external image atube_Catcher_nomal_mode.png
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Website:
http://atube-catcher.dsnetwb.com/video/
Distribution:
Download (Windows 2000 or later)
Anonymous User:
Download and run the software
Logged-in User:
N/A
Email Use:
N/A
Paid Option:
N/A
Comparison:
Wide variety of video codecs supported, automatically converts
youtube videos, can be difficult to navigate, does not record
protected videos
Description:
User can choose a portion or the entire screen to record, the
program makes a video of what is playing on the screen and
the sound the screen makes. Program can also automatically
convert youtube and other flash videos.
Uses:
Record a video that can not be downloaded, create how-to
tutorials for using other software, create a timelapse of
computer usage

Jing

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Website:
http://www.techsmith.com/jing.html
Distribution:
Download (Windows XP, Mac 10.5 or higher)
Anonymous User:
Download Jing software
Logged-in User:
Run software, capture video, upload video
Email Use:
Required for log-in account creation
Paid Option:
Additional storage, additional file type rendering, editing tools
Comparison:
Easy to use, always available in the corner of the screen,
recorded video not easily found, limited encoding options
Description:
User can choose a portion or the entire screen to record, the
program makes a video of what is playing on the screen and
the sound the screen makes.
Uses:
Record a video that can not be downloaded, create how-to
tutorials for using other software, create a timelapse of
computer usage